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142521043145642 = 2721454296358629
BaseRepresentation
bin100000011001111101000100…
…001001100101001110101010
3200200121212201112200122212022
4200121331010021211032222
5122140031044021130032
61223041132514544442
742006543211330400
oct4031750411451652
9620555645618768
10142521043145642
1141458920381287
1213b99648b98122
13616a8a4932bb5
14272a0aba25470
15117247571d512
hex819f442653aa

142521043145642 has 12 divisors (see below), whose sum is σ = 248684677325730. Its totient is φ = 61080447062376.

The previous prime is 142521043145627. The next prime is 142521043145683. The reversal of 142521043145642 is 246541340125241.

It can be written as a sum of positive squares in only one way, i.e., 133205783673361 + 9315259472281 = 11541481^2 + 3052091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142521043145593 and 142521043145602.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 727148179217 + ... + 727148179412.

Almost surely, 2142521043145642 is an apocalyptic number.

142521043145642 is a deficient number, since it is larger than the sum of its proper divisors (106163634180088).

142521043145642 is a wasteful number, since it uses less digits than its factorization.

142521043145642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454296358645 (or 1454296358638 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 142521043145642 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred forty-five thousand, six hundred forty-two".

Divisors: 1 2 7 14 49 98 1454296358629 2908592717258 10180074510403 20360149020806 71260521572821 142521043145642